Tire tread



FIG. 1 is a front elevational view of a tire tread showing our new design, it being understood that the tread pattern is repeated uniformly throughout the circumference thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, it being understood that the opposite side is a mirror image of that shown; and,

FIG. 4 is an enlarged fragmentary front view thereof. 

The ornamental design for a tire tread, as shown and described. 